LM368YH-2.5 NSC [National Semiconductor], LM368YH-2.5 Datasheet

LM368YH-2.5

Manufacturer Part Number

LM368YH-2.5

Description

LM368-2.5 Precision Voltage Reference

Manufacturer

NSC [National Semiconductor]

Datasheet

1.LM368YH-2.5.pdf (8 pages)

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C 1995 National Semiconductor Corporation

LM368-2 5 Precision Voltage Reference

General Description

The LM368-2 5 is a precision monolithic temperature-com-

pensated voltage reference The LM368-2 5 makes use of

thin-film technology enhanced by the discrete laser trim-

ming of resistors to achieve excellent Temperature coeffi-

cient (Tempco) of V

tight initial tolerance (as low as 0 02%) The trim scheme is

such that individual resistors are cut open rather than being

trimmed (partially cut) to avoid resistor drift caused by elec-

tromigration in the trimmed area The LM368-2 5 also pro-

vides excellent stability vs changes in input voltage and

output current The output is short circuit proof A trim pin is

made available for fine trimming of V

intermediate values without greatly affecting the Tempco of

the device

Connection Diagram

Typical Applications

OUT

(as low as 11 ppm C) along with

TL H 8446

OUT

Order Number LM368H-2 5 LM368YH-2 5

or for obtaining

See NS Package Number H08C

Metal Can Package (TO-5)

Low Voltage Reference

Top View

case connected to V

Features

400 A operating current

Low output impedance

Excellent line regulation ( 0001% V typical)

Single-supply operation

Externally trimmable

Low temperature coefficient

Excellent initial accuracy (0 02% typical)

Best reference available for low-voltage operation

5V V

TL H 8446 – 2

REF

TL H 8446– 1

2 500V)

RRD-B30M115 Printed in U S A

December 1994

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LM368YH-2.5 Summary of contents

Page 1

... The output is short circuit proof A trim pin is made available for fine trimming of V OUT intermediate values without greatly affecting the Tempco of the device Connection Diagram Order Number LM368H-2 5 LM368YH-2 5 Typical Applications C 1995 National Semiconductor Corporation TL H 8446 Features 400 A operating current ...

Page 2

Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Input Voltage Power Dissipation Storage Temperature Range b Operating Temperature Range Electrical Characteristics Parameter V Error LM368 OUT ...

Page 3

Typical Performance Characteristics Quiescent Current vs Input Voltage and Temperature Output Impedance vs Frequency Temperature Coefficient LM368-2 5 (Curve A) Typical Temperature Coefficient Calculations LM368-2 5 (see Curve ( ...

Page 4

Typical Applications Wide Range Trimmable Regulator Narrow Range Trimmable Regulator ( TL H 8446–5 Improved Noise Performance TL H 8446 – 25V References g g LM324A or e LM358A R Thin Film Resistor Network e 0 ...

Page 5

Typical Applications (Continued) R Thin Film Resistor Network e 0 05% Matching and 5 ppm Tracking (Beckman 694-3-R-10K-A) (Caddock T-914-10K-100-05) or similar Reference with Booster Multiple Output Voltages TL H 8446– 10 100 mA Boosted Reference TL H 8446– 11 ...

Page 6

Typical Applications (Continued) Buffered High-Current Reference with Filter Simplified Schematic Diagram Reg U S Pat Off TL H 8446 – 8446 – ...

Page 7

7 ...

Page 8

... Physical Dimensions inches (millimeters) Order Number LM368H LM368YH-2 5 This data sheet contains preliminary limits and design specifications Supplemental information will be published at a later date National Semiconductor reserves the right to make changes in the products contained in this document in order to improve design or performance and to supply the best possible ...

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